As costs for renewable energy projects drop and policies and resilience demands increase, capacity for wind and solar PV continues to rise across all regions and market segments, according to a new report from Navigant Research . This uptick in large-scale additions of variable forms of generation presents challenges to the electrical grid, but energy storage systems are helping to mitigate concerns and integrate renewable energy resources without affecting grid reliability. In its report, the research firm examines the global market for energy storage for renewables integration (ESRI), with a focus on six utility-scale, commercial and industrial, and residential applications. The report says the argument for ESRI relies on several different factors, including the condition of the local grid, the type and amount of renewable generation, and incentives and subsidies, among ...